A sequence is a set of numbers, called terms, arranged in some particular order. An arithmetic<span> sequence is a sequence with the difference between two consecutive terms constant. The difference is called the common difference. A </span>geometric <span>sequence is a sequence with the ratio between two consecutive terms constant.
I believe number 2 is geometric and number 5 is arithmetic</span>
Answer:
ching chon me no fresnh lol
Step-by-step explanation:
ching chon me no fresnh lol
ching chon me no fresnh lol
The easiest way to do this is to add or subtract the value of the variable.
For example in the equation 5+a=7, subtract a from both sides to get 5=7-a.
If the initial equation was 5-a=7, add from both sides (5=a+7).
Basically, if the initial value is negative, add its value to cancel to zero.
Do the opposite if the initial value is positive.
Answer:
idk if it's right and i'm really sorry if it isn't
∴ x=
Step-by-step explanation:
f(x)=3
fx=3
÷f on both sides
x=
Answer:
1. Western erodes 2 ft/yr; Dunes builds up at 5 ft/yr
2. Sometime in 2006
3. Solve simultaneous equations
Step-by-step explanation:
1. Erosion patterns
(a) Western Beach
In 15 yr, Western Beach erodes from 100 ft to 70 ft.
The rate of erosion is 30 ft/15 yr = 2 ft/yr.
(b) Dunes Beach
In 15 yr, Dunes Beach builds up from 20 ft to 95 ft.
The rate of buildup is 75 ft/15 yr = 5 ft/yr.
2. Beaches with equal width
From the table, it appears that the beaches will have the same width sometime in year 11 (2006).
3. Best approximation
The graph below also shows that it happens part way through year 11 (2006).
We could get an even better solution by calculating the equations of the two lines and solving the simultaneous equations.